Car-axle driving-gear for dynamos.



WITNESSES:

PATENTED MAR. 10, 1908. W. I. THOMSON.

CAR AXLE DRIVING GEAR FOR DYNAMOS.

APPLICATION IILED IIQV.6. 1905.

2 SHEETS-SHEET 1.

PATENTED MAR. 10, 1908.

W. I. THOMSON. GAR AXLE DRIVING GEAR FOR DYNAMOS.

APPLIATION FILED NOV. 6. 1905.

2 SHEETS-SHEET 2.

' scri tion, such as will ensble others skilledbe't'emaen a cor axle and e dynamo.

evilhbe exemplified in the apparatus hereini above relation, the means wl'iereby power is 'twihich =een be depended upon and the dy.

cient and. inexpensive means for vation taken on the ling a: of Fig. 1.

es res.

WlLlJAil'l l, THOMSON, OF NEWARK, NEW JERSEY, ASSIGNOR TO THE SAFETY UAR HEATING & LIGHTING ("OMPAN Y, A CORPORATION OF NEW JERSEY.

CAR'AX LE DRIVING-GEAR FOB, DYNAfl/IOS.

Ho. semen Specification of Letters Patent.

Patented March 10, 1908.

Application filed November 6, 1906. Serial No, 285,981.

o all whom may concern:

it known that I, WILLIAM I. THOMSON, residing at Newark, in the county of Essex and State of New Jersey, have invented cermin new and useful lnrroveinents in Carilixie Drivingtleer for ynemos, of which the following is a full, re-leer, and exact dein t re art to which it-eppertains to nieke and use the seine.

This invention relates to chinery. One of the objects thereof is to provide du- 1 rolble and ei'iieient power trsnsmitting Ineens electricel ma Another objectisto provide relie bie Ineens o? the above type the contmu tyof action of- .itemo beheld in its operative position under conditions of use. I

hnotlrerobgect 1s Ito rov1de means ofthe czency.

Another object is to provide simple, elliprotecting fthe.porventrensmitting mechanism of a cerexle connected dynamo against the effects c fthe severe conditions to which it is exposed in use Gther objects will be in part obvious end in srt pointed out hereimifter.

l'l6 invention accordingly consists in the features of construction, "combinations of elernents and arrangement of parts which after described and the scope of the cation of which will be indicated in. ti lowing claims.

' In the scco'mi snying drewin s, wherein is shown one 0 various possibe embodiments of my invention, Figure l is on end. Wis-W of the same. Fig. :5 is a sectional ele- Similar reference characters refer to similar parts throughout both views of the draw This invention will be most readily unden stood if the following facts are borne 1n. nnnd. Jrnthe case of a dynamo mounted in the mentof the train.

transmitted to or from the cur axle are likel to become deranged by the flying bits of roch ballast or other foreign matter entering the parts thereof. This is particularly true, where a belt-drive, which is otherwise l'iighly efficient, is emploed. If the belt breaks, the dynamo is like y to swing free and injure itself by contact with surrounding parts, or even tear itself loose, with a chance of derail- It is, moreover, peculisrly important in this art that the dynamo, e maintained in operative condition as its substantially constant action is often dopended upon, with the comparatively small storage batteries in use, to supply light to the cars. Also, on account oi its exposed loos tion, it is severely affected by unfavorable Weather conditions. if it be atten'lpted to protect the transmission by means of a casmg, I have found that in cold weather there is e tendency for moisture, as from the drip of steam traps, to enter this casinp and together with the snow which may Si: t therein, gradually err-.umulate upon the side walls or bottom thereof to such an extent as to interfere with the efficient action of the povver-. transmitting means. The above and other defects are remedied and many positive advantages attained in constructions of the nature of that hereinafter described;

Referring now to Fig. 2 of the accompanying drawings, there is shown a car axle 1 provided with wheels 2 traveling upon the rails 23 end having mounted thereon a truck 4 of anydesired construction. Between straps 5 and 6, secured to each side of the truck, is mounted a cross-bur 7 resting Within bearingbloclrs 8. Bolts 9 pass through these straps, blocks end in the straps being elongated in. the direction of travel of the truck and the slots 11 in the crossbar being, extended in a transverse direction for purposes: hereinafter described. Straps 5 project w nd the cross-bar 7 and have positioned thereon a sec0nd'cross-men1- 12 preferably formed of angle iron. Upon cross-ber .7 is suspended, as by the heavy, perforated lugs l3, a dynamo 14' of" eny esired construction. The casing of this dynamo is provided upon the side remote from the axle 1 With a perforated lug 15 of the corresponding pulley about which is secured a clevis 16 the shank 17 of which oasses through cross-member 12 and is rovided with a coil-s )ring 18 adjustably' he (l in lace by the was or 19 and locknuts 20. pon each end of the dynamoshaft 21 is mounted a pulley 22 each of which is connected with the corresponding pulley 23 fixed upon the axle 1, by a section of a belt 24.

Mounted u on the side of pulle s 22 remote from ax e 1 and secured to tie straps 5, as by an le iron 25, are what may be termed shie ds 26. As the construction of these devices is identical upon each side of the truck, that upon one side only will be described in detail. Shield 26 comprises broadly a substantially upright plate 27 having riveted to the rear surl ace thereof a brace 28 which is inclined toward and riveted to the cross-member 12. As the plate 27 is preferably of a Width greater then that and together with certain inter osed parts of the truck extends vertically rom top to bottom of the power-transmitting means, it will be seen that no foreign matter traveling in a direction parallel to the movement of the truck will strike the transmitting mechanism. This mechanism is protected against the entr of foreign matter during the movement of the truck in the opposite direction by shields 29, the construction of which is substantially identical with that of shields 26 above described, theparts being preferably of somewhat larger size on account of their proximity to the relatively lar e pulleys 23.

The operation of the above r escribed embodiment of my invention is as follows: Assuming the dynamo to be mounted in the position shown, the same is laterally ad- Justed by means of the slots 11 so as to bring the ulleys 22 opposite the corresponding shiel s and otherw se in a position so as to act most efllciently. The extent of compression of s ring 18 is then adjusted so as to bring the esired tension upon each section of the belt and, if necessary, either end of the cross-bar 7 is adjusted in a longitudinal direction by means of slots 10 so'as to line up the dynamo shaft with respect to the axle to make the belt section run true. The shields 26 and 29 operate to prevent the throwing of any foreign niatter against the belt sections or pulleys and on. account of the relatively hig speed of the train, it has been found that itls inexoedient to make the shields of any considers le dimensions, as the direction of travel of such foreign matter relative to the parts nlounted upon the car is substantially parsilel to that of the travel-of the car.

'ltwill g'tihus be seen that I have provided a sim le construction well adapted to accomlisli the several objects of my invention. y reason of the use of a sectional belt, the dynamo is maintained in operative ondition .even though one of the centre-s l royed. to or becomes so loose as to n (In account of the spacing if ti sections one from another, moreover, i extremely un likely. that the same will be simultaneously rendered inoperative innsmuch cs they cou ld, not in the natural course of events he in jured by the some piece of flying, holiest or. other foreign n'iattcr. By reason, oi the power being applied at both ends of the ilyllfliliO-iillfifi, moreover, the tendenc' to cramp the shaft and. cut the bearings is materially lessened and the power more eiliciently applied, and, as the tensioniuyjj means comprising the spring 18 are positioned opposite and substantially midway hot; so .30 the sections, there is no materiel tendenc to twist the dynumo out w ad" tion. it one section is destroyed, more not only is the dynamo maintained in open ativecondition, but the lost section is rcplaced at less cost than would be necessury to re vlace a belt sutliciently heavy to trans-- init t ic power required under the conditions of use with any do ree of certainty. I

On apcount of tie upright disposition and substantially free lower edges of the shields 26 and 29, it w ill be seen that not only are the interposed parts protected against solid particles, but that any liquid which might otherwise accumulate thereon and impede the action of the power-transmitting means, immediately upon striking these members} runs to the lowermost portion thereof and falls therefrom; or, in case of freezing before leaving these parts, the ice is of such form and so positioned as to have no effect upon the parts which it is desired to protect.

As many changes could be made inthe above construction and many apparently widely different embodiments of my inven tion could be made without departing from the scope thereof, I intend that all matter contained in the above description or shown in the accompanying drawings shall be iiiterpreled as illustrative and not in a limiting sense.

I desire it also to be understood tlnit language used in the following raisin is intended to cover all of the generic and specific features of the invention herein described and all statements of the scope of the invention which, as a matter of language, might be said to full therebctween.

Certain features herein shown and described are shown, described and claimed in my copendin application, Serial No. 285,980, filed ovemher 6, 1905, and accordingly are not claimed herein.

Having described my invention,.what I claim as new, and desire to secure by Letters 1215 Patent, is v 1. In apparatus of the class de'scribed,' 'in combination, a car axle, s'dynaino mounted seams and resilientmeans tending to move said dynamo away from said axle. v

3, In apparatus of the class described, in combination, a car axle, a dynamo mounted 'ad'acent said axle, a pair of pulleys upon'said axle, a pulley upon each end of the shaftol' saiddynamo, a belt comprising a plurality of arallel sections respectively connecting, sai pulleys in pairs, and'resil'ient means con-.

' 'nected with said dynamo betw ecu-tile pulleys mounted upon the shaft thereof adapted to.

to said axle, a

upon said axle, a;dynamomounted upon said' truck and ada- 't ed to swingQwith reference- [comprising a lurality'oi independently operative paralel sect ons each of which is adapted to-tranasmit'pbVl'er from said axle to the shaft of said d namo, and means connected withsaid name upon the side thereof remote from said axle adapted to tend to swing said dynamo away from said axle.

5. In apparatus of the class described, in combinat on, a car axle, a dynamo mounted adjacent said axle, a pair of ulleys upon said axle, a pulley upon each en of the shaft of said dynamo, a belt comprising a plurality of independent sections respectively connectingthe said pulleys in airs, and independent means adapted to ad iust the distance be-v tween each of said ulleys upon said dynamo and the correspon ing nil?! upon said axle.

6. In'apparatus of t e c ass described, in combination, a car axle, a ynamo'mounted ad'acent said axle, apair of pulleys upon said axle, a pulley u on each end of the shaft of l'said' dynamo, a elt'comprising a plurality of independent'sectionsrespectively connecting the said pulleys in pairs, independent means i adapted to adjust the distance between each j-ofifsaid pulleys u on said dynamo and the corresponding pu ley upon said axle, and means connected with said dynamo adapted to ltend to swing the same away from said ax e.

7. In apparatus of the class described, in combination, a car axle, a dynamo mounted' ad'acent said axle, a belt comprising a plurality of independently operative sections each adapted to transmit power from said shaft of said dynamo,

run, a (ynamo, power transmittin axle to the shaft of said dynamo, and resilient means tending to move said dynamo away from said axle.

8. In apparatus of the class described, in combination, a car axle, a truck mounted upon said axle, a dynamo suspended from said truck and adapted to swing with re lation. thereto, a pulley upon each end of the a pair of pulleys upon said axle, a belt com rising a plurality of sections respectively a( apted to connect said pulleys in pairs, and means connected with said dynamo betweenthe pulleys upon the shaft thereof adapted to tend to swing the same away from said axle.

9. In apparatus of the class described, in combination, acar axle, a'truck mounted upon said axle,. a dyna mofsuspended from ,said truck andadalptedjto swing with relation thereto, a pill v shaft of said dynamo, sa tend to move said dynamo way from yu'pan each end of the p pair ofpulle'ys upon a belt comprlsin jadjust-tile angular disposition of the'shaft olf said dynamo-with referenceto said axle.

g lflziln apparatus oft'ne class described, in cdn binatioiifa car axle, a truck mounted thereon, across-member u on-saidf truck each end of which is adjusta longitudinal direction, a dynamo mounted le thereon in a a plurality ofv sections respectively adapts to connect said v q r alleys-in pairs, means connected" with said 4. In apparatus, of the class described, in combination acar axle, ,a' truck mounted upon said cross-member and adapted 'to swing with reference to saidtruck, a pulley upon each end of the shaft of said dynamo, a.

pair of pulleys upon said axle, a belt com prising a plurality ofinde e'ndent sections adapted to connect said pul eye in pairs, each of said sections bein adapted-to transmit power between said dynamo and said axle, and spring-pressed means connected with saiddynamo adapted to tend to swing the same away from said axle. 1 l.

11. In apparatus of the class described, in

combination, an axle, a wheel upon said axle, a rail upon which said wheel is adapted to run, a dynamo, power transmitting means",

connectin'g'said dynamo and said axle, and an upright shield adjacent to said power transmitting means and substan'tiall 1n the plane'ol movement thereof", said shie d being so'rnounted as to protect said power transmitting means in the direction of its travel and so formed. as to drainjromitself natural accumulations.

12. In apparatus of the class described, in combination, an axle, a wheel upon said axle, a rail u on which said wheel s adapted to means connecting said dynamo and said ax e, and a pair of substantially upright shields, re-

spectively mounted at each end of said power.

. tion running, -from themselves natural accumulations;

transmitting means and substantially in the plane of travel thereof relative to said rail, said shields being so mounted as to protect said power transmitting means in its direcof travel in either forward or reverse and being so formed as to drain In testimony whereof I affix my signature, in the presence of two witnesses.

WILLIAM I. THOMSON.

Witnesses:

A, C. MOORE, ELMER E. ALLBEE. 

